Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account


perspective on psychology that emphasizes the study of the brain and its effects on behavior


the basic cell that makes up the nerves system, and that receives and sends messages within the system.


branching extensions of neuron that receives messages from neighboring neurons


the cell body of the neuron responsible for maintaining the life of the cell.

glial cell

non-neural cells, holds neurons in place, provide nutriends, gather and package waste


a layer of fatty tissue segmentally encasing the fibers of many neurons; enables vastly greater transmission speed of neural impulses as the impulse hops from one node to the next


neural "cables" containing many axons. These bundled axons, which are part of the peripheral nervous system, connect the central nervous system with muscles, glands, and sense organs

resting potential

the state of the neuron when not firing a neural impulse

action potential

the release of the neural impulse consisting of a reversal of the electrical charge within the axon


referring to the fact that a neuron either fires or does not fire at all

Axon Terminal

branches at the end of the axon

synaptic knob

rounded areas on the end of the axon terminal


chemicals found in the synaptic vesicles that when released has an effect on the next cell.


the junction between two neurons (axon-to-dendrite) or between a neuron and a muscle

receptor sites

holes in the surface of the dendrites or certain cells of the muscles and glands, which are shaped to fit only certain neurotransmitters

excitatory Synapse

synapse at which a neurotransmitter causes the receiving cell to fire

inhibitory synapse

synapse at which a neurotransmitter causes the receiving cell to stop firing


chemical substances that mimic or enhance the effects of a neurotransmitter on the receptor sites of the next cell, increasing or decreasing the activity of that cell


chemical substances that block or reduce a cell's response to the action of other chemicals or neurotransmitters


process by which neurotransmitters are taken back into the synaptic vesicles.


a neurotransmitter that enables learning and memory and also triggers muscle contraction


a neurotransmitter involved in e.g. sleep and depression and memory

GABA (gamma-aminobutyric acid)

involved in sleep, mood, and appetite


major excitatory neurotransmitter involved in learning, memory formation, and nerves system formation


mainly excitatory neurotransmitter involved in arousal and mood


excitatory or inhibitor involved in control of movement and sensation of pleasure


inhibitory neural regulator involved in pain relief

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

Voice Recording